MEET OUR FOUNDER

The frustration that started it all

Women’s bodies change constantly — our weight can fluctuate by up to five pounds in a single day from hormones, stress, travel, water retention, or simply life. Yet traditional jeans are built for one moment, not a whole day. Rigid buttons and zippers don’t adapt, no matter how stretchy the fabric is.

So we engineered something better: Slip-on jeans with real denim and a hidden, leggings-soft stretch waistband underneath.

Real comfort is a pair of jeans that adapt with you — full, bloated, on your period — and never makes you think about it again.

— Karina

Founder, KarinaJ Denim

  • Yale MBA Candidate
  • Former McKinsey Consultant
  • Former Microsoft PM

Have your cake and wear your jeans too

OUR STORY

Jeans were never the problem The way they
were built was.

2023
2023

In January 2023, I flew to New York to attend Kingpins, the world's largest sustainable denim trade show. I didn't go with a finished plan—just a lot of questions. That trip introduced me to the world of denim manufacturing and helped me realize this wasn't a fashion problem; it was a product problem. Women’s bodies change constantly, yet most jeans are designed to fit only a single moment in time.

2024
2024

Over the next year, I immersed myself in denim development. My house filled with fabric swatches as mills mailed samples back and forth. I partnered with a former Levi's designer to begin developing the concept and evaluating countless fabric options, construction techniques, and fit approaches in search of a solution that could deliver both comfort and a premium denim look

2025
2025

Once the concept was established, I focused on perfecting the execution. I worked through six rounds of prototypes and hosted extensive fit sessions to understand how the jeans performed on different body types. Alongside a technical designer from Athleta, I refined everything from the waistband construction to the fit and recovery of the denim, making improvements with each iteration.

2026
2026

The final year was dedicated to preparing for launch. I went through two manufacturers before finding one capable of producing the jeans to the quality standard I envisioned. After 3.5 years of development, I launched on Kickstarter in February 2026 and generated more than $10,000 in preorders within 72 hours. Women immediately responded with comments like, “I wish I could take these home today.”